Proposed ad type parameter. Analytics plugins may wish to report the type of advertisement that is currently playing.

ad-type.js

// when an ad is playing, ads.type would expose the type of linear ad
player.ads.type; // undefined, "preroll", "midroll", or "postroll"

// this property is somewhat duplicative of info that is already exposed by the plugin
// you could figure out the type of ad yourself something like this:
var adType = function(player) {
  if (player.ads.snapshot.currentTime < 0.1) {
    return "preroll";
  } else if (player.ads.snapshot.currentTime < duration - 0.1) {
    return "midroll";
  }
  return "postroll";
}